Apparatus for ventilating



(No Model.)

P. J. SCHLICHT.

APPARATUS POR VENTILATING. 110.592,211. Patented 001;. 19,1897.

uw qi i /T UU M1 1 eGJ: Inman/601.

, UNITED STATES 'PATENT Ormea.

PAUL J. SCI-IIIIOIIT, OF SUMMIT, NEV JERSEY.

APPARATUS FOR VNTILATING.

sPEcIFIcATIoN forming part of Lettere retest` Ne. 592,211, dated oeteieetl 19, 1897. Application tutti Meret 23,1896. sentire. 584,403. (remotas To all whom it may; concern.-

Beit known that I, PAUL J.- ScHLIcHr, a citizen of the United States, residing at Sum,- mit, Union county, New Jersey, have invented certain new and useful Improvements in Methods of and Apparatus for Ventilating, fully described and represented in the following speciication and the accompanying drawings, forming a part of the same.

The object of this invention'is to ventilate apartments which are lighted by the open combustion of gas; and this object is effected by extending a Ventilating conduit or pipe fromthe outer air to the apartment over the gas-fixture upon which the gas is burned, so that the current of heated air which is generated by the combustionl of the gas may readily enter the opening of the conduit.

My invention includes a deflector or airseparator applied to the outer end of the conduit and arranged to initiate a movement of the outer air into the lower part ofthe conduit, the entering current of cooler air moving through the conduit simultaneously with the escaping current of heated air, and serving to supply the apartment with fresh air as the heated or vitiated air is withdrawn. The entering current of air absorbs some heat from the escaping air, and its temperature is thus elevated, so as not to chill the apartnient to which it is conducted. By moving both currents of air in contact with one another in opposite directions through the same Ventilating-conduit, the current of fresh air moves more slowly than would be the case if the separate channel were provided and the air were permitted to enter at a natural and lower temperature. The entering air, being admitted to the apartment over the burning gas, is still further heated before it is diffused about the apartment, and the latter is thus ventilated without the production of `drafts and chilling of its atmosphere.

The invention will be understood by reference to the annexed drawings, in which- Figure 1 exhibits a perspective view of part of a building in section, showing the interiors of two apartments provided,respectively,with

-a chandelier and a wall-bracket for burning gas, with my Ventilating device applied separately to each apartment. Fig. 2 shows the ventilating-pipein perspective detached from the ceiling of the upper apartment; and Fig. '3 shows the Ventilating-pipe in perspective which is detached from the wall of the lower apartment.

A designates an apartment provided with a four-light chandelier B, suspended from the ceiling C. The Ventilating pipe or conduit D is shown concealed within the ceiling and extended through the side wall E of the buildingl into communication with the outer air. Over the drop-tube of the chandelier the ventilating-pipe is formed with an elbow D', the mouth of whichV opens through the ceiling around such tube, over the center of the chandelier. The air and. gases heated by the lights in the chandelier are forced, as is usual in such cases,to the ceiling of the room,and the outlet to the open air, which is furnished by vthe elbow D', secures their discharge through 'the Ventilating-pipe.

` It is well'k'nown that air will move from an apartment with difficulty unless the atmospheric pressure in the apartment is maintained by introducing a volume of air equal to that removed. The introduction of fresh air serves to displace the heated air and thus secures the discharge of the same from the apartment more rapidly and effectively.

The peculiarity of my invention consists in introducing the fresh air through the same ventilatingpipe orconduitD whichdischarges the heated air, and such operation of the pipe I effect by introducing a deflecting-partition d in the outer end of the conduit in such position that the heated air will naturally pass upon one side of such partition and permit a currentv of cold air to enter without obstruction upon the opposite side of the same. The heated air which enters the elbow D naturally follows the upper side of the conduit and the partition d is, under such conditions, arranged to divide the pipe horizontally, so that the heated air passes naturally above the partition and is discharged from the outlet indicated by the letter d in Fig. 2, as is represented by the arrow c in Fig. l.

The under side of the pipe is preferably cut off a little space from the outer end up to the level of the partitiou,as is clearly shown in Fig. 2, thus forming an inlet d2, which is distinctly separated by such space and by the partition from the outlet d', as shown in Fig. 2. The

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deilector or partition thus seives as an air separator to prevent the mingling of the two currents or the interference of one with the other. The partition is also extended within the pipe a suitable distance from the inlet d2, as indicated in Figs. l and 2, thus permitting a current of cold or fresh air to pass into the mouth of the pipe, as indicated by the arrow c' in Fig. l, without interference from the escaping current of heated air. In such movement the cold air, being heavier than the hot air7 naturally moves upon the lower side of the pipe and falls from the nearer side of the elbow into the apartment, as indicated by the arrow f in Fig. 2. Then the heated air passes through the pipe, the conditions above described speedily establish themselves, after which the current of heated air which rises above the chandelier B enters one side of the elbow without hindrance from the cold-air current, as is indicated by the arrow g in Fig. i.

rlhe form of defiector may be materially varied in accommodation to the location and arrangement of the Ventilating-cond uit where it opens into the outer air, but in all cases the inlet of the conduit which opens into the apartment must be arranged above the level of the gas-fixture and adjacent thereto, so that the heated air and gases which rise from the fixture may readily find an escape through the conduit.

There the outgoing and incoming currents move in actual contact with one another, the interchange of heat is readily made, so that the entering current is warmed in a perceptible degree before it enters the apartment, and is thus rendered more agreeable and suitable for ventilation without any injury to its quality. A modified form of deflector will now be described.

F designates the lower apartment in Fig. l, in which a walhbracliet G is represented for burning gas adjacent to the wall.` The conduit II in this construction is shown extended through the wall and upward outside of the saine, with an extension of the upper side of the conduit over the light upon the wallbracket, and a partition d to form separate inlet and outlet passages for two air-currents. The defiector at the upper end of the conduit consists of a vertical tube 7L, supported centrally within the top of the conduit by sev eral radial arms 71/, and projected somewhat above the top of the same, as indicated in It is obvious that any current of air that may be driven by the wind against the pro jecting portion of the deilector is directed downwardly upon that side of the defleetor and enters the annular space t between the defiector and the top of the conduit, and thereafter passes downward upon one side or other of the conduit, as may be determined by the direction of the wind. The heated gases which enter the upper side of the conduit where it passes through the wall E find the least resistance to their passage upon the op posite side of the conduit to that down which the colder current is driven, and escape through the tubular deilcctor '/z' and through the annular space at the side of the saine op posite that upon which the colder current is descending.

It will be observed that the projection of the tubular detlector and the projection of the upper half of the conduit D in Figs. l and 2 serves most effectively to separate the mouths of the passages for the outward and inward currents, and thus avoid the coniiict of such currents which would arise it' they were required to move simultaneously through two apertures located upon the same plane.

The object of using a tubular detlector instead of the transverse partition d is to re* ceive the impact of the wind from any direction, and to afford a downward passage for the fresh air upon one side of the conduit, thus leaving the opposite side free for the es cape of the rising' current. rlhe upper side of the conduit is shown projected from the wall E over the burner of the wall-bracket G, and may thus be arranged, when desired, to intercept the heated gases rising from the saine; but a provision for this purpose is not essential, as I have found by experience that a ventilatingopcning arranged like the elbow D', adjacent to and above a burning gas-jet, will attract the heated gases 'if connected "with a conduit having a deiiector at its outer end, as shown herein, and an inward current of fresh air will also be established along one side of the conduit, as is indicated bythe arrows f in Figs. 2 and 3.

The delieeting devices shown herein are similar to those which I have heretofore employed for conducting fresh air into a lampchimney or combustioli-chamber,as described in my Iatent No. 550,280, granted March l0, 1896, for improvements in Art of and al paratus for producing combustion 5 but such appliances have always been connected to a confined chamber in which the combustionv of fuel was conducted.

In the present invention the Ventilating conduit is in open connection at its inner end with a large apartment in which various aircurrenis may be created by the use of doors and windows; andthe inlet of the conduit therefore requires a special relation to the gas-fixture by arranging its inlet above the level of the same and adjacent thereto. My present invention therefore includes not only the Ventilating-conduit and the deflector upon its outer end, but a special relation of its inlet to the gas-fixture with which it cooperates. As a means of ventilating, my construction possesses the advantage of .requiring but a single conduit to simultaneously introduce and discharge the air, and the entire apparatus may therefore be putin operation by extending a single conduit of suitable construction from a certain point in IOC IIO

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having a gas-fixture therein, of a Ventilating.

conduit opening into the apartment above the level of and adjacent to said gas-fixture, and having its outlet provided with a suitable deiiector dividing the same into inlet and outlet passages, arranged as described, to initiate and separate inward and outward aircurrents, as and for the purpose set forth.

2. The combination, With an apartment having a gas-fixture therein, of a ventilatin gconduit opening into an apartment above the level of and adjacent to said gas-fixtures, and having its outlet provided with a suitable deector dividing the same into inlet and outlet passages, the outlet-passage projecting beyond the mouth of the inlet-passage, to

separate the inward and outward currents of 3o air, substantially as herein set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

PAUL J. SCHLICHT.

Vitnesses:

THoMAs S. CRANE, EDW. F. KiNsEv. 

